Description

Tetrakis(Hydroxymethyl)Phosphonium6-Carboxycelluloseether is a chemically modified cellulose derivative, where the cellulose backbone is functionalized with both carboxymethyl and tetrakis(hydroxymethyl)phosphonium groups. This unique combination imparts properties such as flame retardancy, antimicrobial activity, and enhanced water solubility or dispersibility, making it a valuable specialty polymer. It is primarily utilized in industries requiring advanced material modification, such as the production of flame-retardant textiles, specialty paper coatings, and as a functional additive in water treatment or polymer composites. The compound is identified by CAS No. 73082-49-2.

Application

• Flame Retardant Finishing for Textiles: Imparts durable flame resistance to cotton, polyester, and blended fabrics.
• Antimicrobial Coatings: Used in medical textiles, filtration media, and hygiene products for its biocidal properties.
• Specialty Paper Manufacturing: Acts as a wet-strength additive and coating agent for flame-retardant or archival-grade papers.
• Water Treatment: Functions as a flocculant or chelating agent for heavy metal ion removal in industrial wastewater.
• Polymer Composites: Serves as a functional additive to enhance flame retardancy and mechanical properties in plastics and resins.
• Adhesives and Binders: Modifies rheology and provides cross-linking sites in specialty adhesive formulations.

Basic Information

Product Name	Tetrakis(Hydroxymethyl)Phosphonium6-Carboxycelluloseether
CAS No.	73082-49-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	THPC-Carboxymethyl Cellulose; Tetrakis(hydroxymethyl)phosphonium carboxymethyl cellulose; Phosphonium-modified CMC; THP-Cellulose ether; Cellulose, carboxymethyl ether, tetrakis(hydroxymethyl)phosphonium salt; Flame Retardant Cellulose Derivative; Antimicrobial Cellulose Ether; THP-CMC
EINECS	Contact for details

Quality Control

Our Tetrakis(Hydroxymethyl)Phosphonium6-Carboxycelluloseether is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance and compliance with agreed specifications. Key parameters such as degree of substitution, phosphorus content, viscosity, and purity are verified. A Certificate of Analysis (COA) documenting these results is provided with every shipment to guarantee traceability and quality assurance for our global B2B clients.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and may degrade upon prolonged exposure to strong bases or organic solvents. Keep away from incompatible materials and sources of ignition.

Specification

Item	Specification
Appearance	Off-white to light yellow powder or fibrous solid
Identification (IR)	Conforms to structure
Assay (Active Content)	≥ 90%
Phosphorus Content	Contact for details
Degree of Substitution (Carboxymethyl)	Contact for details
Moisture Content	≤ 8.0%
pH (1% Solution)	6.0 - 8.0
Viscosity (Specified Concentration)	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.